今天来搭建一个简单的springmvc+mybatis项目,数据库使用mysql。
项目使用Dynamic Web Project
1、项目使用jar包
2、建表语句
create table t_member ( id varchar(20) NOT NULL, member_name varchar(20) not null, member_age varchar(20) not null, member_addr varchar(100), PRIMARY KEY (id) )ENGINE=InnoDB DEFAULT CHARSET=utf8;
3、项目结构
4、配置文件
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- 配置ContextLoaderListener表示,该工程要以spring的方式启动。启动时会默认在/WEB-INF目录下查找applicationContext.xml 作为spring容器的配置文件,该文件里可以初始化一些bean --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 字符集过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- spring mvc 配置 --> <!-- 配置DispatcherServlet表示,该工程将采用springmvc的方式。启动时也会默认在/WEB-INF目录下查找XXX-servlet.xml作为配置文件, XXX就是DispatcherServlet的名字,该文件中将配置两项重要的mvc特性:HandlerMapping,负责为DispatcherServlet这个前端控制器的请求查找Controller; ViewResolver,负责为DispatcherServlet查找ModelAndView的视图解析器。 此处使用指定的配置文件spring-mvc.xml --> <servlet> <servlet-name>contacts</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <!--<param-value>/WEB-INF/classes/spring-mvc-servlet.xml</param-value> --> <param-value>/WEB-INF/spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>contacts</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans:beans xmlns="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> <!-- Enables the Spring MVC @Controller programming model --> <context:component-scan base-package="com.cailei" /> <aop:aspectj-autoproxy proxy-target-class="true" /> <annotation-driven /> <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory --> <resources mapping="/resources/**" location="/resources/" /> <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory --> <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <beans:property name="prefix" value="/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean> <!-- Configure to plugin JSON as request and response in method handler --> <beans:bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <beans:property name="messageConverters"> <beans:list> <beans:ref bean="jsonMessageConverter" /> </beans:list> </beans:property> </beans:bean> <!-- Configure bean to convert JSON to POJO and vice versa --> <beans:bean id="jsonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> </beans:bean> </beans:beans>
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <import resource="classpath:spring-mybatis.xml" /> </beans>
spring-mybatis.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <!-- 2. mybatis的SqlSession的工厂: SqlSessionFactoryBean dataSource:引用数据源 MyBatis定义数据源,同意加载配置 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="configLocation" value="classpath:mybatis-config.xml" /> <property name="mapperLocations" value="classpath:com/cailei/study/dao/*.xml" /> </bean> <!-- 3. mybatis自动扫描加载Sql映射文件/接口 : MapperScannerConfigurer sqlSessionFactory basePackage:指定sql映射文件/接口所在的包(自动扫描) --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com/cailei/study/dao/"></property> <!-- <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> --> </bean> <!-- 4. 事务管理 : DataSourceTransactionManager dataSource:引用上面定义的数据源 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 5. 使用声明式事务 transaction-manager:引用上面定义的事务管理器 --> <tx:annotation-driven transaction-manager="txManager" /> </beans>
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!-- 实体类,简称 -设置别名 --> <typeAliases> <typeAlias alias="User" type="com.cailei.study.model.User" /> </typeAliases> <!-- 实体接口映射资源 --> <!-- 说明:如果xxMapper.xml配置文件放在和xxMapper.java统一目录下,mappers也可以省略,因为org.mybatis.spring.mapper.MapperFactoryBean默认会去查找与xxMapper.java相同目录和名称的xxMapper.xml --> <!-- <mappers> <mapper resource="com/cailei/study/mapper/UserMapper.xml" /> </mappers> --> </configuration>
jdbc.properties
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8&autoReconnect=True jdbc.username=root jdbc.password=root
5、java代码
Member.java
package com.cailei.study.model; public class Member { private String id; private String age; private String name; private String addr; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getAge() { return age; } public void setAge(String age) { this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getAddr() { return addr; } public void setAddr(String addr) { this.addr = addr; } public Member(String id, String age, String name, String addr) { super(); this.id = id; this.age = age; this.name = name; this.addr = addr; } public Member() { super(); // TODO Auto-generated constructor stub } @Override public String toString() { // TODO Auto-generated method stub return "id="+id+";age="+age+";name="+name+";addr="+addr; } }
MemberDao.java
package com.cailei.study.dao; import com.cailei.study.model.Member; public interface MemberDao { public Member searchById(String id); public void addMember(Member member); }
memberDao.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <!-- namespace:必须与对应的接口全类名一致 id:必须与对应接口的某个对应的方法名一致 --> <mapper namespace="com.cailei.study.dao.MemberDao"> <insert id="addMember" parameterType="com.cailei.study.model.Member"> insert into t_member(id, member_age, member_name, member_addr) values(#{id},#{age},#{name},#{addr}) </insert> <select id="searchById" parameterType="string" resultType="com.cailei.study.model.Member"> select id,member_age age,member_name name, member_addr addr from t_member where id=#{id} </select> </mapper>
MemberService.java
package com.cailei.study.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.cailei.study.dao.MemberDao; import com.cailei.study.model.Member; @Service public class MemberService { @Autowired private MemberDao memberDao; public Member searchById(String id) { return memberDao.searchById(id); } public void addMember(Member member) { memberDao.addMember(member); } }
MemberController.java
package com.cailei.study.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.cailei.study.model.Member; import com.cailei.study.service.MemberService; @Controller @RequestMapping("/member") public class MemberController { @Autowired private MemberService memberService; @RequestMapping("/search") public String searchMemberById(HttpServletRequest request) { String id = request.getParameter("id"); Member member = memberService.searchById(id); System.out.println("#########" + member.toString()); return member.toString(); } @RequestMapping("/add") public String addMember(HttpServletRequest request) { String id = request.getParameter("id"); String age = request.getParameter("age"); String name = request.getParameter("name"); String addr = request.getParameter("addr"); Member member = new Member(id, age, name, addr); memberService.addMember(member); return "true"; } }
启动工程,使用下面两个链接进行测试
添加数据:http://localhost:8080/ssm/member/add?id=13119188579&age=19&name=李四&addr=陕西渭南
查询数据:http://localhost:8080/ssm/member/search?id=13119188579
这个简单的项目的全部代码都已经贴上了